Loom.



N0. 662,320. Patents d Nov. 20, l900.... E. S. & W. I.'ST|MPSON.

LUOM.

(Application filed July 5, 1900.) (No Model.) 2 Sheets-Sheet I.

Patented Nov; 20, I900. I E. S. &. W. l. STIMPSUN.

LDOM.

(Application filed July 5, 1900.)

2 Shaets-Sheet 2.

(No Model.)

m: nonms PETERS co PHOT0 LXTHO., wAsMmeTom o. c

Nine Sterne Parent union.

EDWARD S. STIMPSON, OF IIOPEDALE, AND WALLACE I. STIMPSON, OF MILFORD, MASSACHUSETTS, ASSIGNORS TO THE DRAPER COMPANY, OF PORTLAND, MAINE, AND IIOPEDALE, MASSACHUSETTS.

LOOlVl.

SPECIFICATION forming part of Letters Patent No. 662,320, dated November 20, 1900.

Application filed July 5, 1900. Serial No. 22,514. (No model.)

T0 (0 whom, it may concernf Be it known that we, EDWARD S. STIMPsoN, a resident of Hopedale, and WALLACE I. STIMPSON, a resident of Milford, county of Worcester, State of Massachusetts, citizens of the United States, have invented an Improvement in Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

In weaving fine goods it is very desirable and often necessary for the weaver to pull out part of a pick when the filling breaks and to insert a full pick, and manifestly it is necessary to stop the loom in order that this operation may be performed. When weaving other goods where the presence of only a portion of filling in a pick or a double filling part way across the cloth is not objectionable, it is unnecessary to stop the loom if the latter be provided with means forautomatically replenishing the filling when it breaks. In such automatic looms, however, it is very desirable that they may be readily adapted for weaving fine as well as coarse goods; but heretofore, so far as we are aware, the mechanism has been so arranged that it will always operate automatically to effect a change of filling upon breakage of the filling and also prior to complete exhaustion of the filling in the shuttle, or else such mechanism, while automatically effecting filling change prior to exhaustion, will operate to stop the loom if the filling breaks. Thus the mechanism adapted for weaving one class of goods, as before mentioned, is not adapted for Weaving the other class.

Our present invention relates particularly to automatic looms; and it has for its object the production of means whereby bya slight and readily effected adjustment the loom may be stopped automatically whenever the filling breaks, as when Weaving fine goods, or filling change may be effected automatically when a break occurs, so that one and the same mechanism is adapted to perform both classes of Work.

We have herein shown our invention in connection with means for automatically effecting a change in filling prior to complete exhaustion of the filling in the shuttle, whether the loom is to be stopped or not upon a break in the filling.

The various novel features of our invention will be hereinafter fully described, and particularly pointed out in the following claims.

Figure l is a top or plan view, centrally broken out, of a portion of a loom, including the lay, breast-beam, and filling-supplying mechanism, with one embodiment of our presentinvention in connection therewith. Fig. 2 is an enlarged transverse sectional view of the loom, taken on the line m 00, Fig. 1, looking toward the right, the filling-feeder of the filling-supplying mechanism at the far side of the loom being omitted. Fig. 3 is an enlarged top or plan view of the filling detector or fork, its slide, and the latch-like member with its support, forming a part of the means for controlling the filling-supplying mechanism, the dog forming a part of the means for controlling the stopping mechanism being also shown. Fig. 4 is a side elevation of the parts shown in Fig. 3, but viewed from the right-hand side of the loom; and Fig. 5 is an enlarged detail in elevation showing the lockcoupling forming a part of the connections between the means for controlling the fillingsupplying mechanism and the fork-slide.

We have herein shown our invention as applied to a loom of the type forming the subjectmatter of United States Patent No. 648,986, dated May 8, 1900, wherein a feeler is adapted to feel the filling in the shuttle at every alternate forward beat of the lay, the feeler operating to efiect actuation of the filling-supplying mechanism prior to complete exhaustion of the filling. A lay A the filling-feeder F, Fig. 1, for the filling-carriers b,the transferrerf', and the operating or controlling shaft d, adapted to be worked in the direction of the arrow 20, Fig.

2, to effect a change of filling, are and may be as in said patent. So, too, the notchedholding-plate N, the shipper-handle N the stand a, upon which is adjustably fulcrumed the L- shaped feeler-armf havingits inner end extended to form an arm f having a Wearplate 90, the abutment or stop b3, against The loom-frame A, breast-beam which the arm f is norm ally held by a spring 8 the shuttle-box B having an aperture 3 in its front wall, through which the extremity of the feeler f passes as the lay heats up, and the shuttle S, having a slot 4 in its sidewall, in Figs. 1 and 2,whereby the feeler can feel the filling in the shuttle, are and may be all as in said patent and operating as therein set forth. The stop b is mounted on the stand B, secured to the breast-beam, said standhaving upright walls b 12 between which the slide m moves, the weft-hammer W, vibratingin the slotted bottom of the guideway for the slide, anda sliding support or bar 0 is mounted to be longitudinally movable in a guideway in a lateral extension 19 of the stand B.

A'latch-carrier c is fulcrumed on the slidebar 0, provided at its outer end with a lateral foot 0 to rest upon the wear-plate 90 of the feeler-arm f when the latter is adjacent the stop b a spring 3 tending to lift the inner end of the latch-carrier. The depending latch e is pivoted to the inner end of the latch-carrier, and when the filling is exhausted to a predetermined extent the arm f will remain beneath the foot 0 and the latch will be engaged by a projection w of the weft-hammer W, Fig. 4, so that as the latter moves to the right, Fig. 2, it will through the latch move it and the slide-bar 0 toward the front of the loom, the outer end of the bar then engaging an upturned arm d fast on the rock-shaft d", rocking the latter in the direction of the arrow 20, to effect the actuation of the fillingsupplying mechanism, all as in Patent No.

648,986, referred to. Lifting of the slide-bar o is prevented by an overhanging detent 11 on the extension 19 (see Fig. 3,) and return movement of the slide is effected by the action of the spring S Fig. 2, upon the rock-shaft 61. So long as there is sufficient filling in the shuttle the arm f will be withdrawn from beneath. the foot 0 each time the lay heats up, permitting the spring :3 to lift the inner end of the latch-carrier and raise the latch into inoperative position out of the path of the projection 10 on the weft-hammer.

A knock-off lever '17. n for the shipper handle N is fulcrumed on the breast-beam at n, Fig. 1, the end a passing under the bend of the arm 61 and the part 02 being upturned at n in the path of the outer end of a dog 30, fulcrumed at 31 on the filling-detector or forkslide m, slotted at m for the weft-hammer, and having a filling detector or fork m pivoted at m and provided with a tail m to be engaged by the hook m of the weft-hammer when the detector is not tilted, as upon filling failure, and when absence of filling is detected the slide m is moved outward. A sliding trip 32 is mounted on the slide m, having alump 33 on its upper side to normally engage a cam 34 on the dog 30, said cam having a slot 35, Fig. 4, through which a set-screw 36 passes into the side of the dog, and when the parts are adjusted, as in said Fig. 4, the outer end of the dog will be above the upturned end a of the knock-off lever. On the outward movement of the slide the downturned end 37 of the trip meets ashoulder 38 of the stand (see dotted lines, Fig. 4) and is stopped, permitting the cam 34 to drop from the lump 33, and the dog drops on the top of the end a of the knock-off lever, substantially as in United States Patent No. 529,943, dated November 27, 1894, and similarly thereto a second outward movement of the slide will cause the dog, which has dropped in behind the knockoff lever, to engage and swing the. latter and thereby release the shipper-handle.

The outer end of the slide 'm is provided with an upturned hook m into which enters the downturned hooked end d of an upturned arm d having its hub d loosely mounted on the rock-shaft d, the hooking of the arm into the slide acting as a downhold for the latter, while the depending end 01 of' the arm d operates to effect disengagement of the take-up pawl and ratchet when the arm is rocked by outward movement of the slide m due to absence of the filling. The hub d is shown in Fig. 5 as shouldered at 6 to engage the opposite shoulder 7 on a collar 70, also mounted on the rock-shaft d, and adapted to be secured thereto by a set-screw 75. The collar serves as a lock-coupling, as will be manifest hereinafter, to at times connect the arm 01 with the rock-shaft, for if the collar is made fast on the rock-shaft by the set-screw 75, when the arm (1 is swung outward by the slide the shoulder 6, acting on shoulder 7, will operate to turn the rockshaft (1 and effect the actuation of the fillingsupplying mechanism. On the other hand, if the collar 70 is loose on the shaft the rocking of the arm (1 will have no effect upon the rock-shaft 61, nor consequently upon the tilling-supplying mechanism. If, therefore, 0rdinary cloth is to be woven on the loom, the lock-coupling will be made operative by securing the collar 70 to the rock-shaft, so that if the filling breaks the filling supplying mechanism will be actuated, and at such time the cam 34 will be set on the dog 30, as shown in Fig. 4, to operate, as described hereinbefore. Should the loom be weaving fine goods, however, in which part picks must be removed, the lock-coupling 70 will be released, so that the shaft 01 will not be rocked u'pon failure of the filling, and at the same time the set-screw 36 will be loosened and the cam 34 will be raised on the dog 30. This permits the free end of the latter to drop behind the end a of the knock-off lever, and at the first outward movement of the slide m due to filling failure the dog will operate the knockoff lever to release the shipper-handle and thereby stop the loom. It is to be noted, however, that whatever the adjusted condition of the lock-coupling and cam the feeler will operate to effect actuation of the filling-supplying mechanism upon exhaustion of the filling in the shuttle to a predetermined extent.

The cam Stmay be termed a selecting, device, as by its manually-effected adj L1stment on the dog it determines whether the loom will be stopped upon the detection of filling failure or whether the loom is to continue running in such event, the stopping of the loom upon two successive failures being provided for in case the fresh filling should fail to properly enter the shuttle or should the shuttle misthread.

The return of the trip to normal position relative to the dog is effected by the wefthammer in the manner set forth in Patent No. 529,943, referred to, and to which reference may be had.

A spring S secured at one end to the loomf-rame, is arranged to bear at its free end against the outer side of the arm d, as shown, said spring acting to move the fork-slide m inward. The mechanisms controlled, respectively, by the amount of filling in the shuttle and by the presence or absence of filling in the shed are operated by a common actuatorviz., the weft-hammer-as herein shown and described It will be evident from the foregoing clescri-ption that by our invention We greatly enlarge the range of work of a loom, and yet the general construction and arrangement of parts are not materially altered.

An establishment equipped with looms embodying our invention can turn out fine cloth and with slight adjustment can place the looms in condition to turn out coarser cloth and at a higher rate of production, obviating the necessity for two sets of looms or the restriction of prod notion to practically a single grade of work.

We have shown herein one practical embodiment of our invention, and it will be manifest that the spirit and scope thereof will not be departed from by such changes or modifications as would occur to those skilled in the art.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a loom provided with filling-supplying mechanism and stopping mechanism, means to effect the operation of the former upon exhaustion of the filling to a predetermined extent-and to stop the loom upon filling failure, and means to prevent operation of the stopping mechanism and effect actuation of the filling-supplying mechanism upon failure of filling.

2. Inaloom provided with filling-supplying mechanism andstopping mechanism, means to always effect the operation of the former upon exhaustion of the filling to a predetermined extent, and means to effect the operation of either the filling-supplying or the stopping mechanism upon failure of the filling.

3. lnaloom provided with filling-supplying mechanism and stopping mechanism, means to always effect the operation of the former upon exhaustion of the filling to a predetermined extent, controlling means for the stopping mechanism, to actuate the same upon filling failure, means operated by or through filling failure to effect the actuation of the fillingsupplying mechanism, and manuallyoperated devices to determine whether the stopping mechanism or the fillingsupplying mechanism shall be operated upon tailu re of the fillingv 4. In a loom, filling-supplying mechanism, two sets of controlling means therefor, governed respectively by exhaustion of the filling to a predetermined extent and by failure of the filling, stopping mechanism for the 100m, controlling means therefor operative upon failure of filling, a commonactuating device for the several controlling means, and means to render the stopping-controlling means operative and the filling-failure-actnated controlling means of the filling-supplying mechanism inoperative, and vice versa, whereby in one case the loom will be stopped, and in the other case the filling will be changed without stoppage, upon failure of the filling.

5. In a loom provided with filling-supplying mechanism and stopping mechanism, means, including a rock-shaft, to effect the operation of the former upon exhaustion of the filling to a predetermined extent, means to control the operation of the stopping mechanism, actuated by or through filling failure, means, including an arm loosely mounted on the said rock-shaft, to rock the arm upon filling failure, a locking device to lock the arm and shaft together to effect actuation of the filling-supplying mechanism, and a device to render ineffective temporarily the controlling means for the stopping mechanism when the said arm and rock-shaft are locked together.

6. In a loom provided with filling-supplying mechanism and stopping mechanism, means to effect the operation of the former upon exhaustion of the filling to a predetermined extent, independent means to effect the operation of either the filling-supplying mechanism or the stopping mechanism upon failure of the filling, a selecting device to determine which of said mechanisms shall be operated, and a common actuator for said independent means.

7. In a loom, filling-supplying mechanism, means to control the time of its operation, a vibrating actuator for said means, the latter including a feeler to feel the filling in the shuttle, and a latch moved into inoperative position by the feeler until the filling has been exhausted to a predetermined extent, the actuator engaging the latch when it is in operative position, combined with stopping mechanism for the loom, means operated upon failure of the filling to elfect the actuation of the stopping mechanism, a device to render the operation of said means temporarily ineffective, and connections between said means and the filling-supplying mechanism,

toeffect the actuation of the latter when said means is temporarily rendered inefiective to operate the stopping means.

8. In aloom provided with filling-supplying mechanism and stopping mechanism, a-filling-detector to detect failure of the filling, ineans Operative upon detection of filling failure to effect the operation of either of said mechanisms, a man ually-adjustable device to select the mechanism to'be operated, a feeler to feel the filling in the shuttle, and means controlled by the feeler to eflfectthe operation of the filling-supplying mechanism prior to complete exhaustion of the filling in the shuttle.

9. In aloom provided With filling-supplying mechanism and stopping mechanism, a controlling rock-shaft for the former, a fixed arm and a loose arm on the rock-shaft, a device to lock the loose arm on the shaft, means operative upon exhaustion of the filling to a predetermined extent to move the fixed arm and rock the said shaft, a slide movable upon failure of the filling, to engage and rock the other arm, a dog on the slide, adapted to at times effect the actuation of the stopping means, and a device to maintain said dog temporarily inoperative when the loose arm is locked to the rock-shaft, the movement of the slide'thereupon acting to rock the shaft and effect the operation of the filling-supplying mechanism.

10. In a loom provided with filling-supplying mechanism, a slide, a stand in which it is reciprocated, an actuator to move the slide upon failure of the filling, connections including a lock-coupling, between the slide and filling-supplying mechanism, to effect operation thereof when the slide is moved, a dog on the slide, a shipper-handle adapted to be operated by the dog when the slide is moved, and means to render the dog temporarily inefifective to operate the shipper-handle When the coupling in said connections is locked.

In testimony whereof We have signed our names to this specification in the presence of two subscribing witnesses.

EDWARD s. STIMPSON. WALLACE I. STIMPSON.

Witnesses:

E. D. BANCROFT, F. E. 000K. 

